Motion Sensor Gen 2

Installing SimpliSafe® sensors takes less than a minute! In most cases, sensors can be mounted on walls by using the adhesive strips on the back of each device. However, there are some situations where the sensor may not adhere to the wall effectively, like: Brick surfaces: the surface can be rough

If you purchased a Motion Sensor from SimpliSafe prior to April 2023, it is likely that you have the first generation of the Motion Sensor. You can also tell which version of the Motion Sensor you have by comparing the size of the dome on it. The Motion Sensor Gen 1 has a dome with a 1-inch diameter